Resumen
The specified method is applicable to sulfide determination in a mass concentration range from 0,04 mg/l to 1,5 mg/l. The following ions do not interfere in specified mass concentrations: cyanide, iodide, thiosulfate, thiocyanate, sulfite. The principle is filtration, conservation of the sulfide in the filtrate, stripping of the sulfides, formation of leukomethylene blue, measurement of the absorbance of this complex at a wavelength of 665 nm. Annex A describes standardization of sulfide stock solution.
Informaciones generales
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Estado: PublicadoFecha de publicación: 1992-09Etapa: Norma Internacional en proceso de revisión sistemática [90.20]
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Edición: 1Número de páginas: 9
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Comité Técnico :ISO/TC 147/SC 2ICS :13.060.50
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